What is the mass of nitrogen in 1000kg of urea, [CO(NH2)2]? ( Answer correct to the nearest Kg) [H = 1, C = 12, N = 14, O = 16]
466.67 kg
Molecular weight of urea [CO(NH2)2] = [12 + 16 + 2(14 + 2 × 1)] = 60
Molecular weight of nitrogen = 28
∴ Mass of nitrogen in 1000 kg of urea = 28×100060 = 466.67 kg